new file mode 100644
--- /dev/null
+++ b/packages/cygmon/current/misc/bsp/common/debug-io.c
@@ -0,0 +1,127 @@
+//==========================================================================
+//
+//      debug-io.c
+//
+//      BSP Debug Channel Interfaces.
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    
+// Contributors: gthomas
+// Date:         1999-10-20
+// Purpose:      BSP Debug Channel Interfaces.
+// Description:  
+//               
+//
+//####DESCRIPTIONEND####
+//
+//=========================================================================
+
+
+#include <stdlib.h>
+#include <bsp/bsp.h>
+#include "bsp_if.h"
+
+static unsigned char __debug_ungetc;
+
+void
+bsp_debug_write(const char *p, int len)
+{
+    struct bsp_comm_procs *com = bsp_shared_data->__debug_procs;
+
+    com->__write(com->ch_data, p, len);
+}
+
+
+int
+bsp_debug_read(char *p, int len)
+{
+    struct bsp_comm_procs *com = bsp_shared_data->__debug_procs;
+
+    if (len <= 0)
+	return 0;
+
+    if (__debug_ungetc) {
+	*p = __debug_ungetc;
+	__debug_ungetc = 0;
+	return 1;
+    }
+
+    return com->__read(com->ch_data, p, len);
+}
+
+
+void
+bsp_debug_putc(char ch)
+{
+    struct bsp_comm_procs *com = bsp_shared_data->__debug_procs;
+
+    com->__putc(com->ch_data, ch);
+}
+
+int
+bsp_debug_getc(void)
+{
+    struct bsp_comm_procs *com = bsp_shared_data->__debug_procs;
+    int  ch;
+
+    if (__debug_ungetc) {
+	ch = __debug_ungetc;
+	__debug_ungetc = 0;
+    } else
+	ch = com->__getc(com->ch_data);
+
+    return ch;
+}
+
+
+void
+bsp_debug_ungetc(char ch)
+{
+    __debug_ungetc = (unsigned char)ch;
+}
+
+
+int
+bsp_debug_irq_disable(void)
+{
+    struct bsp_comm_procs *com = bsp_shared_data->__debug_procs;
+
+    return com->__control(com->ch_data, COMMCTL_IRQ_DISABLE);
+}
+
+
+void
+bsp_debug_irq_enable(void)
+{
+    struct bsp_comm_procs *com = bsp_shared_data->__debug_procs;
+
+    com->__control(com->ch_data, COMMCTL_IRQ_ENABLE);
+}
+
+